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  1. #1
    Join Date
    Jul 2018
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    1 2 and 3 Pass Chillers?

    I am new to HVAC-Central Plant Operations.Still trying to learn as much as I can.

    Can someone please explain why (In layman's terms) Chiller evaporators are either 1 2 and 3 pass? Why the difference? Is their a benefit to more passes?

    Any help would be much appreciated!
    Thank you

  2. #2
    Join Date
    Aug 2006
    Mixing oil and fire with a big spoon.
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    the lower the number of passes, the less water pressure drop there is. generally, the fewer the number of passes, the higher the allowed water flow rate is.

    the higher the number of water passes, the greater the heat transfer efficiency.

    as with most things, there is a balance that needs to be struck between heat transfer efficiency, flow rate and cost of pump operation.
    Don't step on my favorite part of the Constitution just to point out your favorite part.

    Political Correctness is forced on you because you have forgotten decency.

    Technically speaking, they are all heat pumps.

  3. Likes manny238 liked this post
  4. #3
    Join Date
    Feb 2004
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    post an email address and you will learn more!

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